Wheel rail clamp



sept. 1, 1936. F.l w. BROWN 2,053,179.

WHEEL RAIL CLAMP I VFiled July 18,` 1935 ATTORNEY Patented Sept. 1, 1936 UNITED STATES PATENT FFICE 2 Claims.

The invention relates toa car stop and more especially to a wheel rail clamp,

The primary object of the invention is the provision of a clamp of this character, wherein the same when engaged with a track rail will constitute a Wheel stop and such wheel can be seated therein and locked therewith so as to avoid the moving of a car especially where the car is not standing on the level. The said car can not become loose when locked to the rail.

Another object of the invention is the provision of a clamp of this character, wherein the construction thereof is novel in 'form and is readily and easily engaged with a track rail and also the engagement of the wheel of a car therein with dispatch for the locking of the wheel to prevent movement of the car.

A further object of the invention is the provision of a clamp of this character, which is simple in construction, thoroughly reliable and eicient in its operation, readily and easily applied to and removed from a track rail, and inexpensive to manufacture.

With these and other objects in View, the invention consists in the features of construction, combination and arrangement of parts as will be hereinafter more fully described, illustrated in the accompanying drawing, which discloses the preferred embodiment of the invention and pointed out in the claims hereunto appended.

In the accompanying drawing:

Figure 1 is a fragmentary side elevation of a track rail and car wheel showing the clamp constructed in accordance with the invention applied.

Figure 2 is a top plan view of the clamp removed from the rail.

Figure 3 is a fragmentary sectional view on the line 3-3 of Figure l looking in the direction of the arrows.

Figure 4 is a sectional View on the line 4-4 of Figure 1 looking in the direction of the arrows.

Figure 5 is a plan view of a locking pin Similar reference characters indicate corresponding parts throughout the several views in the drawing.

Referring to the drawing in detail, A designates generally a portion of a track rail and B a portion of a car wheel, respectively, the latter having at its periphery the tread flange i0 to hold the wheel upon the rail and against lateral displacement, the rail and the wheel being of conventional form.

The clamp or car stop comprises a pair of side cheeks or plates Il, which at their lower straight edges are provided with rail engaging jaws I2 which are shaped at the inner faces thereof to conform to the web and ball of the rail A so as to clamp the same when between the jaws l2 and to closely intert therewith. These cheeks or 5 plates li have passed transversely therethrough a securing bolt i3 carrying a nut ill which plays against a washer l5 held in xed position by a lretaining ring l5 made fast to one of the cheeks I l.

These cheeks or plates H are formed with lat- 10 erally offset arcuate shaped Wings il and therebetween are arcuate shaped shoulders i8 forming seats for the rim or tread of the Wheel B, one of the shoulders i3 being provided with a channel or groove i9 matching and receiving the tread 15 flange ill of the said wheel B.

Provided in the wings Il are the arcuate shaped slots 2@ for accommodating a releasable locking pin 2l which is passed transversely through the slots 2U to engage between the spokes 20 of the wheel B when the tread or rim is seated against the shoulders i8 between the wings Il of the cheeks or plates il so that the wheel will be clamped to the rail A to hold a car immovable.

The locking pin 2i at one end is formed with 25 a wrench head 22 for convenience for enabling the pin to be utilized as a wrench for the bolt land nut i3 and i4.

On one of the cheeks or plates Il is a fulcrum lug 23 it engaging a notch 24 companion thereto 30 in the other cheek or plate il and this lug when seated in the notch 24 maintains the cheeks or plates spaced apart from each other corresponding to the thickness of the web of the rail A and also assures a uniform spacing of the wings l1 35 from each other to permit the wheel to roll into the space between the wings for seating against the shoulders i8 so that the pin can be engaged inthe slots 2@ and lie crosswise between the spokes of the wheel B and thus lock the wheel 40 to the rail and this clamp functions as a car stop and also a wheel rail clamp.

What is claimed is:

l. A clamp of the character described comprising a pair of cheek plates having jaws for en- 45 gaging a track rail, laterally oifset wings on the cheek plates and providing a seat therebetween for a car wheel, means for securing the cheek plates in clamped relation to the rail and means for locking the wheel seated between the wings 50 on said cheek plates, the wings being provided with arcuate shaped slots accommodating the locking means for the wheel.

2. A clamp of the character described comprising a pair of cheek plates having jaws for engag- 55 ate shaped slots accommodating the locking means for the wheel and a, fulcrum lug on one cheek plate and engaged with the other for holding the same spaced relative to each other when secured to the rail.

FRANK W. BROWN. 

